tridymite

(redirected from Trydimite)
Also found in: Thesaurus, Medical, Encyclopedia.
Related to Trydimite: cristobalite

tridymite

(ˈtrɪdɪˌmaɪt)
n
(Minerals) a form of silica found in igneous rock
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tridymite - a mineral form of silicatridymite - a mineral form of silica    
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
silica, silicon dioxide, silicon oxide - a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite
References in periodicals archive ?
Major mineral constituent of the lime is calcium hydroxides (Ca(OH)2) while the RHA contains Trydimite mineral.
This clay has a smectite content greater than 90% (93 [+ or -] 2%), with quartz (2 [+ or -] 1%), plagioclase (3 [+ or -] 1%), cristobalite (2 [+ or -] 1%), potassic feldspar, calcite, and trydimite as accessory minerals.
There are multiple toxic forms of crystalline silica, including quartz, trydimite and cristobalite.